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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Detail specification for electronic component--High frequency silicon dual insulated-gate field-effect transistor of type 4CS142
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic component--High frequency silicon dual insulated-gate field-effect transistor of type 4CS1421
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic component N-channel single-gate junction type field-effect transistor of type CS422OA
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic component--Bipolar transistor for ambient-rated high-frequency amplification of type 3DG3130
WITHDRAWN published on 1.1.1988
Selected format:Terms, classification, grade of waste heat in industry and calculating method of quantity of waste heat resources
WITHDRAWN published on 5.1.2000
Selected format:Portable pneumatic extinguishers-Technical specification
WITHDRAWN published on 10.11.1999
Selected format:Portable pneumatic extinguishers-Bench test methods
WITHDRAWN published on 10.11.1999
Selected format:Portable pneumatic extinguishers—Safety requirements
WITHDRAWN published on 10.11.1999
Selected format:Machinery for forestry—Portable pneumatic fire extinguisher—Safety code of practice
WITHDRAWN published on 23.12.2008
Selected format:Portable pneumatic extinguishers—Measurement of hand-transmitted vibration
WITHDRAWN published on 10.11.1999
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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